WO2013027333A1 - Power branching device - Google Patents

Abstract

Provided is an inexpensive and small power branching device capable of adding an extension power branching module. The power branching device for branching and outputting power input from the outside comprises: a substrate (20); an input connection portion (12) provided on the substrate (20) and receiving power; a conductor portion (6) provided in parallel with the substrate surface; a first output connection portion (60) projecting from the substrate in a direction parallel to the substrate surface, electrically connected to the input connection portion via the conductor portion, and outputting the power; and a second output connection portion (11) provided on the substrate, electrically connected to the input connection portion via the conductor portion, and outputting the power.

Description

Power branching device

The present invention relates to a power branching device for industrial equipment for branching and supplying power to a plurality of devices that require power.

Patent Document 1 discloses a distribution board in which an extension distribution board module can be added to the main distribution board module and the expandability is further improved.

JP 2007-300706 A

However, since conventional distribution boards use conductive bars, it is necessary to make a wide space so as not to cause a short circuit between the conductive bars or a ground fault between the conductive bars and the casing. There is a need for protection with a casing, and there is a limit to downsizing. Also, the conventional distribution board has a problem that the number of parts is large and the assembly work takes time, so that the manufacturing cost increases.

Accordingly, an object of the present invention is to provide a power branching device that can increase or decrease the number of power branching modules for expansion without waste as needed, and is advantageous for downsizing and thinning.

A power branching device according to a first aspect of the present invention is a power branching device for branching and outputting power input from the outside, and is provided with a board and an input to which power is input. A connecting portion for use, a conductor portion provided in parallel with the substrate surface, and extending from the substrate in a direction parallel to the substrate surface, and electrically connected to the input connecting portion via the conductor portion. A first output connection portion that outputs power, and a second output connection portion that is provided on the substrate and is electrically connected to the input connection portion via the conductor portion and outputs power. It is characterized by providing.

The power branching apparatus according to the second aspect of the present invention includes a main power branch module for branching and outputting power input from the outside, and the main power branch module connectable to the main power branch module; And an additional power branch module for branching and outputting the power input from the main power branch module when connected, wherein the main power branch module is a first board. And a first input connection portion for inputting electric power from the outside in a direction parallel to the first substrate surface, and parallel to the first substrate surface. A first conductor portion provided on the first input portion and the first input connection portion via the first conductor portion, and in a direction parallel to the first substrate surface. Extends from one board and outputs power A first output connection portion and a second output that is provided on the first substrate and is electrically connected to the first input connection portion via the first conductor portion and outputs power And the additional power branch module is provided on the second board and the second board, and can be connected to the first output connection part of the main power branch module, When connected to the first output connection section, the second input connection section for inputting power from the first output connection section is provided in parallel with the second substrate surface. The second substrate portion is electrically connected via the second input connection portion and the second conductor portion, and the second substrate is parallel to the second substrate surface. A third output connection portion that outputs power and is provided on the second substrate, and is connected to the second input portion. Use connection portion and electrically connected, and a fourth output connection unit for outputting the power.

The power branching device according to the third aspect of the present invention is arranged so as to overlap the first layer substrate, the first layer substrate having the first conductor portion therein, and electrically connected to the first conductor portion by the via. A second layer substrate having a second conductor portion connected therein, an input connection portion electrically connected to the first conductor portion, and a first electrically connected to the second conductor portion An output connecting portion; and a second output connecting portion electrically connected to the first conductor portion.

According to the present invention, it is possible to increase or decrease the number of additional power branch modules as needed, and to provide a power branch device that is advantageous for downsizing and thinning.

Other features and advantages of the present invention will become apparent from the following description with reference to the accompanying drawings. In the accompanying drawings, the same or similar components are denoted by the same reference numerals.

The accompanying drawings are included in the specification, constitute a part thereof, show an embodiment of the present invention, and are used to explain the principle of the present invention together with the description.
It is a perspective view of the electric power branching apparatus which concerns on embodiment of this invention. It is a top view of the electric power branching apparatus which concerns on embodiment of this invention. It is an exploded view of the electric power branching apparatus which concerns on embodiment of this invention. It is drawing which shows the power branch module for extension which concerns on embodiment of this invention. FIG. 6 is a perspective view of a main power branch module according to another embodiment of the present invention. It is a perspective view of the power branch module for extension concerning other embodiments of the present invention. It is a perspective view of the power branch module for extension concerning other embodiments of the present invention. It is an expanded view of the power branch module for extension which concerns on other embodiment of this invention. It is an expanded view of the power branch module for extension which concerns on other embodiment of this invention.

Hereinafter, typical embodiments of the present invention will be described with reference to the accompanying drawings.

1, 2, and 3 are a perspective view, a top view, and an exploded view of a power branching apparatus according to an embodiment of the present invention. As shown in FIG. 1, the power branching apparatus of the embodiment of the present invention is connectable to a main power branching module 1 for branching and outputting power input from the outside, and the main power branching module 1, When connected to the power branch module 1, an extension power branch module 2 for branching and outputting the power input from the main power branch module 1 is provided.

As shown in FIG. 3, the main power branch module 1 includes a plurality of main conductors (conductor portions) 5 a, 5 b, 5 c that are embedded in the multilayer printed circuit board 10 and insulated from each other, and the plurality of main conductors 5 a, 5 b, 5 c. A plurality of branch conductors (conductor portions) 6a, 6b, 6c that are electrically connected to each other, are embedded in the multilayer printed circuit board 10, and are insulated from each other. Further, the main power branch module 1 has a plurality of output connection portions 11a, 11b, and 11c that are mounted on the multilayer printed circuit board 10 and are electrically connected to the plurality of main conductors 5a, 5b, and 5c, respectively. A first connector 11 is provided. Since the first connector 11 is a portion where electric power is output, it is preferable to use a female connector from the viewpoint of safety.

As shown in FIG. 3, the main conductor is a layered conductor provided in parallel with the substrate surface, and the thickness thereof can be, for example, 0.3 mm or more. Similarly, the branch conductor is also a layered conductor portion provided in parallel to the substrate surface, and the thickness thereof can be, for example, 0.3 mm or more so as to be able to handle a current of 10 A or more. Thus, by making a conductor part into layers, it can respond to a large current and can be made thin. In this example, three main conductors and three branch conductors are provided for use in a power branching device used for three-phase alternating current. However, the number of these is not particularly limited.

As shown in FIG. 3, the multilayer printed circuit board 10 is a laminate in which a first layer substrate 10a having main conductors 5a, 5b, 5c and a second layer substrate 10b having branch conductors 6a, 6b, 6c are laminated. It can consist of a body. In addition, the first connector 11 can be mounted on the first layer substrate 10a.

The material of the multilayer printed board 10 can be an insulator such as a glass epoxy material (FR-4).

One end of each of the main conductors 5 a, 5 b, 5 c provided in the multilayer printed circuit board 10 extends to the outside of the multilayer printed circuit board 10. Since the extending portions 50a, 50b, and 50c extending in the direction parallel to the substrate surface are provided with the holes 9, they can be directly fastened to the upper breaker (not shown) with screws. Each of the extending portions 50a, 50b, and 50c functions as an input connecting portion for inputting electric power from the outside. Here, the extending portions 50a, 50b, and 50c functioning as the plurality of input connecting portions are arranged on the first end side of the main power branching module 1, and have a plurality of output connecting portions 11a, 11b, and 11c. The 1 connector 11 is disposed on the second end side of the main power branch module 1 opposite to the first end side. *

Similarly, one ends of the branch conductors 6 a, 6 b, 6 c built in the multilayer printed board 10 are extended to the outside of the multilayer printed board 10. Since the extended portions 60a, 60b, 60c extending in the direction parallel to the substrate surface are provided with the holes 9, they can be directly fastened with a branch breaker (not shown) and screws. The extension parts 60a, 60b, and 60c function as output connection parts for branching and outputting the power input to the extension parts 50a, 50b, and 50c as input connection parts, respectively. Here, the extending portions 60a, 60b, and 60c that function as a plurality of output connection portions are disposed on the third end side of the main power branch module 1 that is different from the first end side and the second end side. .

Further, in order to reduce the overall size of the power branching device, the extending portions 50a, 50b, and 50c and the extending portions 60a, 60b, and 60c intersect with each other when viewed from above the substrate as shown in FIG. Typically, they can be arranged so as to protrude in directions perpendicular to each other.

In the present embodiment, the conductor part built in the printed circuit board 1 is extended to the outside of the printed circuit board, and this is connected directly to the breaker as a connection part. For example, a connector or a terminal is provided on the printed circuit board. A structure in which a stand or the like is mounted and connected separately by a cable or the like may be used.

The extension power branch module 2 includes a second connector 12 that can be connected to the first connector 11 of the main power branch module 1 and a first connector that can be connected to another extension power branch module 2 on the multilayer printed circuit board 20. 11 is implemented. As a result, the expansion power branch module 2 can be directly connected to and separated from the main power branch module 1. Further, the expansion power branch modules 2 can be directly connected and separated.

The extension power branch module 2 is electrically connected to the plurality of main conductors 5a, 5b, 5c, which are housed in the multilayer printed circuit board 20 and insulated from each other, and each of the plurality of main conductors 5a, 5b, 5c. A plurality of branch conductors 6 a, 6 b, and 6 c that are provided on the printed circuit board 20 and insulated from each other may be provided.

As in the case of the main power branch module described above, in the additional power branch module 2 shown in FIGS. 3 and 4, the main conductor is a conductor portion provided in parallel to the substrate surface, and the thickness thereof is 0. It can be 3 mm or more. Similarly, the branch conductor is also a conductor portion provided in parallel to the substrate surface, and its thickness can be 0.3 mm or more.

As shown in FIG. 3, one end of the branch conductors 6 a, 6 b, 6 c provided in the multilayer printed circuit board 20 extends to the outside of the multilayer printed circuit board 20. Holes 9 are provided in the extending portions 60a, 60b, and 60c extending in a direction parallel to the substrate surface, and are configured to be fastened directly to a branch breaker (not shown) with screws. The extension portions 60a, 60b, and 60c function as output connection portions for branching and outputting the power input to the input connection portions 12a, 12b, and 12c.

Further, the expansion power branch module 2 is mounted on the multilayer printed circuit board 20 and is electrically connected to each of the plurality of main conductors 5a, 5b, and 5c. And a first connector having a plurality of output connection portions 11a, 11b, and 11c mounted on the multilayer printed circuit board 20 and electrically connected to the main conductors 5a, 5b, and 5c, respectively. And a connector 11.

Also in the expansion power branch module 2, the input connection portions 12a, 12b, and 12c and the extension portions 60a, 60b, and 60c are crossed with each other when the board surface is viewed from above, typically It can be arranged to protrude in the vertical direction.

In this example, the input connecting portions 12a, 12b, and 12c of the second connector 12 are male connectors, but the present invention is not limited to this, and a female connector may be used by inserting a separate pin for connection.

As described above, according to the present invention, it is possible to provide a power branching device in which the extension power branching module 2 can be added as necessary and the flexibility is improved.

In FIG. 4, 4A is a top view of the additional power branch module according to the embodiment of the present invention. In FIG. 4, 4B-4G is a cross-sectional view taken along line AA ', BB', C-C ', X-X', Y-Y ', and Z-Z' in 4A. The branch conductor 6a is disposed below the main conductor 5a as shown in the section AA ′ shown as 4B and the section XX ′ shown as 4E, and the main conductor 5a is formed by vias extending in the vertical direction of the substrate 20. It is electrically connected to the branch conductor 6a. Like the BB ′ cross section shown as 4C and the YY ′ cross section shown as 4F, the branch conductor 6b is arranged on the lower side of the main conductor 5b, and the main conductor 5b is formed by a via extending in the vertical direction of the substrate 20. Are electrically connected to the branch conductor 6b. Like the CC ′ cross section shown as 4D and the ZZ ′ cross section shown as 4F, the branch conductor 6c is arranged on the lower side of the main conductor 5c, and the main conductor 5c is formed by a via extending in the vertical direction of the substrate 20. Are electrically connected to the branch conductor 6c.

The main conductor and the branch conductor are made of copper, for example, and may have a thickness of 0.3 mm or more. In this case, a large current of 10 A or more can be passed. Furthermore, since the main conductor and the branch conductor are not exposed to the outside and are built in the substrate, the main conductor and the branch conductor are highly safe and can be easily reduced in size and thickness.

As an electrical connection means between conductors such as a main conductor and a branch conductor, a so-called through-hole is provided in which a hole (through hole) penetrating the substrate 10 is provided, and the inner surface of the hole is subjected to metal plating such as copper to short-circuit between the conductor portions. There are various methods such as hole vias and filling holes with solder, but the present invention does not limit the manufacturing method.

In the above configuration, when a large current of up to 100 A is to be passed, for example, if the main conductor and the branch conductor are made of copper and the thickness thereof is 1 mm, the thickness of the printed circuit board itself is about 3 to 5 mm. Even if compared with the case where a conductive bar is used, the size can be considerably reduced.

With reference to FIG. 5 thru | or FIG. 9, the power branching apparatus which concerns on other embodiment of this invention is demonstrated. In the modification of the main power branch module 1 shown in FIG. 5, unlike the main power branch module 1 shown in FIG. 1, the extended portions 50a, 50b, 50c of the main conductors 5a, 5b, 5c are branched conductors 6a, 6b. , 6c extending from the surface opposite to the side of the substrate from which the extended portions 60a, 60b, 60c are extended.

In the modification of the additional power branch module 2 shown in FIG. 6, unlike the additional power branch module 2 shown in FIG. 1, not only the branch conductors 6a, 6b, 6c are extended from the front side of the board, It extends from the rear side. By doing so, in this embodiment, a branch breaker (not shown) can be connected not only from the front of the substrate but also from the rear.

In the modification of the extension power branch module 2 shown in FIG. 7, unlike the extension power branch module 2 shown in FIG. 1, the ends of the extended portions 60a, 60b, 60c of the branch conductors 6a, 6b, 6c are positioned downward. It has a shape that is bent. Further, as shown in FIG. 7, the tip of the extended portion can be changed according to the engagement with the breaker, such as U-shaped processing instead of making a round hole.

As shown in FIG. 8, in the modification of the extension power branch module 1, the extension portions 50a, 50b, 50c of the main conductors 5a, 5b, 5c and the branch conductor are different from the extension power branch module 1 shown in FIG. The extending portions 60a, 60b, and 60c of 6a, 6b, and 6c are extended from the same front surface of the substrate. Further, the tip portions of the extending portions 50a, 50b, and 50c are bent upward, and the extending portions 60a, 60b, and 60c are bent downward. This shape is effective when the distance between the upper breaker (not shown) and the branch breaker (not shown) cannot be increased.

In the modification of the main power branching module 1 shown in FIG. 9, unlike the main power branching module shown in FIG. 3, the main conductors 5a, 5b, 5c and the branch conductors 6a, 6b, 6c. That is, the first layer substrate 10a includes a main trunk conductor 5a and a branch conductor 6a electrically connected to the main trunk conductor 5a. The second layer substrate 10b includes a main trunk conductor 5b and a branch conductor 6b electrically connected to the main trunk conductor 5b. The first layer substrate 10c includes a main trunk conductor 5c and a branch conductor 6c electrically connected to the main conductor 5c. In the case of this form, although there is a demerit of increasing the size as the number of layers increases, an electrical connection means between conductive layers such as through-hole vias is unnecessary, and it is effective for flowing a larger current.

The preferred embodiments and examples of the present application have been described above with reference to the accompanying drawings, but the present invention is not limited to the embodiments and examples, and is understood from the description of the claims. It can be changed into various forms within the range.

This application claims priority on the basis of Japanese Patent Application No. 2011-179387 filed on Aug. 19, 2011, the entire contents of which are incorporated herein by reference.

1 Main power branch module 2 Additional power branch module 5a, 5b, 5c Main conductor (conductor part)
6a, 6b, 6c Branch conductor (conductor part)
9 hole 10 multilayer printed circuit board 11 first connector 11a, 11b, 11c output connection part 12 second connector 12a, 12b, 12c input connection part 20 multilayer printed circuit board 50a, 50b, 50c extension part (input connection part)
60a, 60b, 60c Extension part (output connection part)

Claims (10)

1. A power branching device for branching and outputting power input from the outside,
   A substrate,
   An input connection portion provided on the substrate for receiving electric power;
   A conductor provided in parallel with the substrate surface;
   A first output connection portion extending from the substrate in a direction parallel to the substrate surface, electrically connected to the input connection portion via the conductor portion, and outputting electric power;
   A power branching device, comprising: a second output connection portion which is provided on the substrate and is electrically connected to the input connection portion via the conductor portion and outputs power.
2. The power branching device according to claim 1, wherein the conductor portion has a layer shape, and the thickness of the layer is 0.3 mm or more, and can handle a large current of 10 A or more.
3. 2. The power branching device according to claim 1, wherein the conductor portion is built in the substrate.
4. The power branching device according to claim 1, wherein the input connection portion and the second output connection portion are provided on the substrate.
5. A main power branch module for branching and outputting power input from the outside and connectable to the main power branch module. When connected to the main power branch module, the main power branch module is input from the main power branch module. A power branching device including an additional power branching module for branching and outputting the power
   The main power branch module is:
   A first substrate;
   A first input connection portion extending from the first substrate in a direction parallel to the first substrate surface and for inputting electric power from the outside;
   A first conductor provided in parallel with the first substrate surface;
   It is electrically connected to the first input connection portion via the first conductor portion, and extends from the first substrate in a direction parallel to the first substrate surface to output electric power. A first output connection,
   A second output connection portion that is provided on the first substrate and is electrically connected to the first input connection portion via the first conductor portion and outputs electric power;
   The additional power branch module is
   A second substrate;
   Provided on the second substrate, connectable to the first output connection portion of the main power branching module, and connected to the first output connection portion; A second input connection for inputting power from the connection;
   A second conductor portion provided in parallel with the second substrate surface;
   The second input connection portion and the second conductor portion are electrically connected to each other and are extended from the second substrate in a direction parallel to the second substrate surface to output electric power. A third output connection;
   A power branching device, comprising: a fourth output connection portion provided on the second substrate and electrically connected to the second input connection portion and outputting electric power.
6. The first conductor portion and the second conductor portion are layered, and the thickness of the layer is 0.3 mm or more, and can handle a large current of 10 A or more. Item 6. The power branching device according to Item 5.
7. 6. The electric power according to claim 5, wherein the first conductor portion is internally provided in the first substrate, and the second conductor portion is internally provided in the second substrate. Branch device.
8. The first input connection portion and the first output connection portion are disposed so as to protrude in directions perpendicular to each other when the first substrate surface is viewed from above. The power branching apparatus according to claim 5.
9. The second input connection portion and the third output connection portion are disposed so as to protrude in directions perpendicular to each other when the second substrate surface is viewed from above. The power branching apparatus according to claim 5.
10. A power branching device,
    A first layer substrate having a first conductor portion therein;
    A second layer substrate disposed inside the first layer substrate and having a second conductor portion therein and electrically connected to the first conductor portion by a via;
    An input connection portion electrically connected to the first conductor portion;
    A first output connection portion electrically connected to the second conductor portion;
    A second output connection portion electrically connected to the first conductor portion;
    A power branching device comprising:

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